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7076 Aluminum vs. C70700 Copper-nickel

7076 aluminum belongs to the aluminum alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7076 aluminum and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
73
Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2
39
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
46
Shear Strength, MPa 310
220
Tensile Strength: Ultimate (UTS), MPa 530
320
Tensile Strength: Yield (Proof), MPa 460
110

Thermal Properties

Latent Heat of Fusion, J/g 380
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 630
1120
Melting Onset (Solidus), °C 460
1060
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 140
59
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
34
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.0
3.4
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1110
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
51
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 45
19
Strength to Weight: Axial, points 49
10
Strength to Weight: Bending, points 48
12
Thermal Diffusivity, mm2/s 54
17
Thermal Shock Resistance, points 23
12

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0
Copper (Cu), % 0.3 to 1.0
88.5 to 90.5
Iron (Fe), % 0 to 0.6
0 to 0.050
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0 to 0.5
Nickel (Ni), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
0
Residuals, % 0
0 to 0.5